10 20 30 40 50 60 70 80 1K9T - Header ----|----|----|----|----|----|----|----|----|----|----|----|----|----|----|----| Asymmetric UnitHEADER HYDROLASE 30-OCT-01 1K9T
TITLE CHITINASE A COMPLEXED WITH TETRA-N-ACETYLCHITOTRIOSE
COMPND MOL_ID: 1; COMPND 2 MOLECULE: CHITINASE A; COMPND 3 CHAIN: A; COMPND 4 EC: 3.2.1.14; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES
SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SERRATIA MARCESCENS; SOURCE 3 GENE: CHIA; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_STRAIN: A9588; SOURCE 6 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 7 EXPRESSION_SYSTEM_PLASMID: PKK233-3
KEYWDS GLYCOSYL HYDROLASE FAMILY 18, CHITINASE, CHITINOLYSIS, A/B-(TIM)- KEYWDS 2 BARREL, HYDROLASE
EXPDTA X-RAY DIFFRACTION
AUTHOR G.PRAG,P.A.TUCKER,A.B.OPPENHEIM
REVDAT 4 13-JUL-11 1K9T 1 VERSN REVDAT 3 24-JUN-08 1K9T 1 REMARK REVDAT 2 10-JUN-08 1K9T 1 REMARK VERSN REVDAT 1 06-NOV-02 1K9T 0
JRNL AUTH G.PRAG,P.A.TUCKER,A.B.OPPENHEIM JRNL TITL COMPLEX STRUCTURES OF CHITINASE A MUTANT WITH OLIGONAG JRNL TITL 2 PROVIDE INSIGHT INTO THE ENZYMATIC MECHANISM JRNL REF TO BE PUBLISHED JRNL REFN
REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH G.PRAG,C.E.VORGIAS,A.B.OPPENHEIM REMARK 1 TITL CONSERVATION OF STRUCTURAL ELEMENTS AND CATALYTIC MECHANISM REMARK 1 TITL 2 IN THE CHITINOLYTIC ENZYMES FROM SERRATIA MARCESCENS REMARK 1 REF CHITIN ENZYMOL. V. 3 351 2001 REMARK 1 REFN REMARK 1 REFERENCE 2 REMARK 1 AUTH Y.PAPANIKOLAU,G.PRAG,G.TAVLAS,C.E.VORGIAS,A.B.OPPENHEIM, REMARK 1 AUTH 2 K.PETRATOS REMARK 1 TITL HIGH RESOLUTION STRUCTURAL ANALYSES OF MUTANT CHITINASE A REMARK 1 TITL 2 COMPLEXES WITH SUBSTRATES PROVIDE NEW INSIGHT INTO THE REMARK 1 TITL 3 MECHANISM OF CATALYSIS REMARK 1 REF BIOCHEMISTRY V. 40 11338 2001 REMARK 1 REFN ISSN 0006-2960 REMARK 1 DOI 10.1021/BI010505H REMARK 1 REFERENCE 3 REMARK 1 AUTH I.TEWS,A.C.TERWISSCHA VAN SCHELTINGA,A.PERRAKIS,K.S.WILSON, REMARK 1 AUTH 2 B.W.DIJKSTRA REMARK 1 TITL SUBSTRATE-ASSISTED CATALYSIS UNIFIES TWO FAMILIES OF REMARK 1 TITL 2 CHITINOLYTIC ENZYMES REMARK 1 REF J.AM.CHEM.SOC. V. 119 7954 1997 REMARK 1 REFN ISSN 0002-7863 REMARK 1 DOI 10.1021/JA970674I REMARK 1 REFERENCE 4 REMARK 1 AUTH A.PERRAKIS,I.TEWS,Z.DAUTER,A.B.OPPENHEIM,I.CHET,K.S.WILSON, REMARK 1 AUTH 2 C.E.VORGIAS REMARK 1 TITL CRYSTAL STRUCTURE OF A BACTERIAL CHITINASE AT 2.3 ANGSTROM REMARK 1 TITL 2 RESOLUTION REMARK 1 REF STRUCTURE V. 2 1169 1994 REMARK 1 REFN ISSN 0969-2126
REMARK 2 REMARK 2 RESOLUTION. 1.80 ANGSTROMS.
REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC REMARK 3 AUTHORS : MURSHUDOV,VAGIN,DODSON REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 3 NUMBER OF REFLECTIONS : 73268 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING + TEST SET) : 0.189 REMARK 3 R VALUE (WORKING SET) : 0.180 REMARK 3 FREE R VALUE : 0.221 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 3687 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 4117 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 57 REMARK 3 SOLVENT ATOMS : 761 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 23.74 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : NULL REMARK 3 B22 (A**2) : NULL REMARK 3 B33 (A**2) : NULL REMARK 3 B12 (A**2) : NULL REMARK 3 B13 (A**2) : NULL REMARK 3 B23 (A**2) : NULL REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): NULL REMARK 3 ESU BASED ON FREE R VALUE (A): NULL REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): NULL REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : 0.013 ; 0.020 REMARK 3 ANGLE DISTANCE (A) : 0.023 ; 0.030 REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : 0.027 ; 0.040 REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : 0.116 ; 0.120 REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : 0.179 ; 0.500 REMARK 3 MULTIPLE TORSION (A) : 0.255 ; 0.500 REMARK 3 H-BOND (X...Y) (A) : NULL ; NULL REMARK 3 H-BOND (X-H...Y) (A) : NULL ; NULL REMARK 3 REMARK 3 CONFORMATIONAL TORSION ANGLE RESTRAINTS. REMARK 3 SPECIFIED (DEGREES) : NULL ; NULL REMARK 3 PLANAR (DEGREES) : 3.300 ; 3.000 REMARK 3 STAGGERED (DEGREES) : 13.800; 15.000 REMARK 3 TRANSVERSE (DEGREES) : 24.200; 20.000 REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 1.300 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 1.758 ; 3.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.562 ; 3.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 3.550 ; 4.000 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL
REMARK 4 REMARK 4 1K9T COMPLIES WITH FORMAT V. 3.15, 01-DEC-08
REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 01-NOV-01. REMARK 100 THE RCSB ID CODE IS RCSB014739.
REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 28-SEP-00 REMARK 200 TEMPERATURE (KELVIN) : 100.0 REMARK 200 PH : 7.20 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : EMBL/DESY, HAMBURG REMARK 200 BEAMLINE : X13 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.81 REMARK 200 MONOCHROMATOR : SI 111 REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MAR CCD 165 MM REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS, DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 73268 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.800 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 200 DATA REDUNDANCY : 4.300 REMARK 200 R MERGE (I) : 0.03910 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 18.2200 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.80 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.85 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: PDB ENTRY 1EDQ REMARK 200 REMARK 200 REMARK: NULL
REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 63.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.35 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.75M CITRATE-NA AND 20%(V/V) REMARK 280 METHANOL, PH 7.20, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 291K
REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 2 2 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -X,Y,-Z+1/2 REMARK 290 4555 X,-Y,-Z REMARK 290 5555 X+1/2,Y+1/2,Z REMARK 290 6555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 7555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 8555 X+1/2,-Y+1/2,-Z REMARK 290 REMARK 290 WHERE NNN -> OPERATOR NUMBER REMARK 290 MMM -> TRANSLATION VECTOR REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY REMARK 290 RELATED MOLECULES. REMARK 290 SMTRY1 1 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 1 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 1 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 2 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 29.76950 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 29.76950 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 99.92650 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 65.95350 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 99.92650 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 65.95350 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 29.76950 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 99.92650 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 65.95350 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 29.76950 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 99.92650 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 65.95350 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL
REMARK 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON REMARK 300 BURIED SURFACE AREA.
REMARK 350 REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS REMARK 350 GIVEN BELOW. BOTH NON-CRYSTALLOGRAPHIC AND REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN. REMARK 350 REMARK 350 BIOMOLECULE: 1 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 6280 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 39300 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: 20.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A REMARK 350 BIOMT1 1 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 1 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 1 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 2 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 131.90700 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 0.00000
REMARK 465 REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 REMARK 465 M RES C SSSEQI REMARK 465 VAL A 562 REMARK 465 GLN A 563
REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 OH TYR A 393 O HOH A 1268 2.07 REMARK 500 O5 NAG A 8 O4 NAG A 9 2.10 REMARK 500 O5 NAG A 7 O4 NAG A 8 2.15 REMARK 500 O HOH A 769 O HOH A 912 2.19 REMARK 500 OD2 ASP A 223 O HOH A 1251 2.19 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 NZ LYS A 84 O GLU A 352 4566 2.14 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 ARG A 107 NE - CZ - NH1 ANGL. DEV. = 4.2 DEGREES REMARK 500 ARG A 107 NE - CZ - NH2 ANGL. DEV. = -5.6 DEGREES REMARK 500 ARG A 221 NE - CZ - NH2 ANGL. DEV. = -3.7 DEGREES REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: TORSION ANGLES REMARK 500 REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS: REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2) REMARK 500 REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI- REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400 REMARK 500 REMARK 500 M RES CSSEQI PSI PHI REMARK 500 LYS A 142 79.63 -116.67 REMARK 500 GLU A 147 -128.64 47.46 REMARK 500 GLN A 154 76.71 -66.06 REMARK 500 TYR A 170 -108.37 -95.14 REMARK 500 PHE A 224 0.96 82.20 REMARK 500 SER A 227 -159.97 -148.70 REMARK 500 LYS A 250 -154.00 -114.75 REMARK 500 ASP A 313 72.51 -113.33 REMARK 500 THR A 405 26.99 -147.93 REMARK 500 LYS A 413 74.23 -154.72 REMARK 500 GLU A 500 67.04 74.19 REMARK 500 REMARK 500 REMARK: NULL
REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A 961 DISTANCE = 5.21 ANGSTROMS REMARK 525 HOH A1020 DISTANCE = 5.24 ANGSTROMS REMARK 525 HOH A1037 DISTANCE = 5.03 ANGSTROMS REMARK 525 HOH A1040 DISTANCE = 5.19 ANGSTROMS REMARK 525 HOH A1081 DISTANCE = 5.45 ANGSTROMS REMARK 525 HOH A1096 DISTANCE = 5.05 ANGSTROMS REMARK 525 HOH A1160 DISTANCE = 5.92 ANGSTROMS REMARK 525 HOH A1181 DISTANCE = 6.75 ANGSTROMS REMARK 525 HOH A1188 DISTANCE = 5.09 ANGSTROMS REMARK 525 HOH A1243 DISTANCE = 5.44 ANGSTROMS REMARK 525 HOH A1247 DISTANCE = 5.09 ANGSTROMS REMARK 525 HOH A1263 DISTANCE = 5.34 ANGSTROMS REMARK 525 HOH A1266 DISTANCE = 5.17 ANGSTROMS REMARK 525 HOH A1306 DISTANCE = 5.37 ANGSTROMS
REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NAG A 6 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NAG A 7 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NAG A 8 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NAG A 9
REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1EIB RELATED DB: PDB REMARK 900 1EIB CONTAINS CHITINASE A MUTANT D313A COMPLEXED WITH OCTA- REMARK 900 N-ACETYLCHITOOCTAOSE (NAG)8. REMARK 900 RELATED ID: 1EHN RELATED DB: PDB REMARK 900 1EHN CONTAINS CHITINASE A MUTANT E315Q COMPLEXED WITH OCTA- REMARK 900 N-ACETYLCHITOOCTAOSE (NAG)8. REMARK 900 RELATED ID: 1CTN RELATED DB: PDB REMARK 900 1CTN CONTAINS A BACTERIAL CHITINASE AT 2.3 A RESOLUTION.
REMARK 999 REMARK 999 SEQUENCE REMARK 999 THE DEPOSITORS FOUND THAT RESIDUE 475 IS GLY AND THAT IT IS VARIED REMARK 999 FROM THE SEQUENCE IN GENBANK AT THIS POSITION. COMPARE ENTRIES REMARK 999 1EDQ, 1EHN, 1EIB, 1FFR, 1FFQ AND BAA31567(AB015996). THE REMARK 999 CRYSTALLOGRAPHIC DATA WAS CONFIRMED BY DNA SEQUENCING. THE REASON REMARK 999 FOR THESE DIFFERENCES IS PROBABLY DUE TO EVOLUTIONARY VARIATIONS. REMARK 999 SEQUENCES VARIATIONS AMONG S.MARCESCENS CHITINASE A THAT WERE REMARK 999 ISOLATED IN SEVERAL PLACES IN THE WORLD ARE KNOWN. IN THIS CASE THE REMARK 999 STRAIN IS FROM THE COLLECTION OF PROF. ILAN CHET.
DBREF 1K9T A 24 563 UNP O83008 O83008_SERMA 24 563
SEQADV 1K9T ALA A 391 UNP O83008 ASP 391 ENGINEERED SEQADV 1K9T GLY A 475 UNP O83008 ARG 475 SEE REMARK 999
SEQRES 1 A 540 ALA ALA PRO GLY LYS PRO THR ILE ALA TRP GLY ASN THR SEQRES 2 A 540 LYS PHE ALA ILE VAL GLU VAL ASP GLN ALA ALA THR ALA SEQRES 3 A 540 TYR ASN ASN LEU VAL LYS VAL LYS ASN ALA ALA ASP VAL SEQRES 4 A 540 SER VAL SER TRP ASN LEU TRP ASN GLY ASP THR GLY THR SEQRES 5 A 540 THR ALA LYS VAL LEU LEU ASN GLY LYS GLU ALA TRP SER SEQRES 6 A 540 GLY PRO SER THR GLY SER SER GLY THR ALA ASN PHE LYS SEQRES 7 A 540 VAL ASN LYS GLY GLY ARG TYR GLN MET GLN VAL ALA LEU SEQRES 8 A 540 CYS ASN ALA ASP GLY CYS THR ALA SER ASP ALA THR GLU SEQRES 9 A 540 ILE VAL VAL ALA ASP THR ASP GLY SER HIS LEU ALA PRO SEQRES 10 A 540 LEU LYS GLU PRO LEU LEU GLU LYS ASN LYS PRO TYR LYS SEQRES 11 A 540 GLN ASN SER GLY LYS VAL VAL GLY SER TYR PHE VAL GLU SEQRES 12 A 540 TRP GLY VAL TYR GLY ARG ASN PHE THR VAL ASP LYS ILE SEQRES 13 A 540 PRO ALA GLN ASN LEU THR HIS LEU LEU TYR GLY PHE ILE SEQRES 14 A 540 PRO ILE CYS GLY GLY ASN GLY ILE ASN ASP SER LEU LYS SEQRES 15 A 540 GLU ILE GLU GLY SER PHE GLN ALA LEU GLN ARG SER CYS SEQRES 16 A 540 GLN GLY ARG GLU ASP PHE LYS VAL SER ILE HIS ASP PRO SEQRES 17 A 540 PHE ALA ALA LEU GLN LYS ALA GLN LYS GLY VAL THR ALA SEQRES 18 A 540 TRP ASP ASP PRO TYR LYS GLY ASN PHE GLY GLN LEU MET SEQRES 19 A 540 ALA LEU LYS GLN ALA HIS PRO ASP LEU LYS ILE LEU PRO SEQRES 20 A 540 SER ILE GLY GLY TRP THR LEU SER ASP PRO PHE PHE PHE SEQRES 21 A 540 MET GLY ASP LYS VAL LYS ARG ASP ARG PHE VAL GLY SER SEQRES 22 A 540 VAL LYS GLU PHE LEU GLN THR TRP LYS PHE PHE ASP GLY SEQRES 23 A 540 VAL ASP ILE ASP TRP GLU PHE PRO GLY GLY LYS GLY ALA SEQRES 24 A 540 ASN PRO ASN LEU GLY SER PRO GLN ASP GLY GLU THR TYR SEQRES 25 A 540 VAL LEU LEU MET LYS GLU LEU ARG ALA MET LEU ASP GLN SEQRES 26 A 540 LEU SER VAL GLU THR GLY ARG LYS TYR GLU LEU THR SER SEQRES 27 A 540 ALA ILE SER ALA GLY LYS ASP LYS ILE ASP LYS VAL ALA SEQRES 28 A 540 TYR ASN VAL ALA GLN ASN SER MET ASP HIS ILE PHE LEU SEQRES 29 A 540 MET SER TYR ALA PHE TYR GLY ALA PHE ASP LEU LYS ASN SEQRES 30 A 540 LEU GLY HIS GLN THR ALA LEU ASN ALA PRO ALA TRP LYS SEQRES 31 A 540 PRO ASP THR ALA TYR THR THR VAL ASN GLY VAL ASN ALA SEQRES 32 A 540 LEU LEU ALA GLN GLY VAL LYS PRO GLY LYS ILE VAL VAL SEQRES 33 A 540 GLY THR ALA MET TYR GLY ARG GLY TRP THR GLY VAL ASN SEQRES 34 A 540 GLY TYR GLN ASN ASN ILE PRO PHE THR GLY THR ALA THR SEQRES 35 A 540 GLY PRO VAL LYS GLY THR TRP GLU ASN GLY ILE VAL ASP SEQRES 36 A 540 TYR ARG GLN ILE ALA GLY GLN PHE MET SER GLY GLU TRP SEQRES 37 A 540 GLN TYR THR TYR ASP ALA THR ALA GLU ALA PRO TYR VAL SEQRES 38 A 540 PHE LYS PRO SER THR GLY ASP LEU ILE THR PHE ASP ASP SEQRES 39 A 540 ALA ARG SER VAL GLN ALA LYS GLY LYS TYR VAL LEU ASP SEQRES 40 A 540 LYS GLN LEU GLY GLY LEU PHE SER TRP GLU ILE ASP ALA SEQRES 41 A 540 ASP ASN GLY ASP ILE LEU ASN SER MET ASN ALA SER LEU SEQRES 42 A 540 GLY ASN SER ALA GLY VAL GLN
HET NAG A 6 14 HET NAG A 7 15 HET NAG A 8 15 HET NAG A 9 15
HETNAM NAG N-ACETYL-D-GLUCOSAMINE
FORMUL 2 NAG 4(C8 H15 N O6) FORMUL 5 HOH *761(H2 O)
HELIX 1 1 ALA A 49 LEU A 53 1 5 HELIX 2 2 TRP A 167 TYR A 170 5 4 HELIX 3 3 THR A 175 ILE A 179 5 5 HELIX 4 4 PRO A 180 LEU A 184 5 5 HELIX 5 5 ASN A 201 ILE A 207 5 7 HELIX 6 6 GLY A 209 CYS A 218 1 10 HELIX 7 7 ASP A 230 GLN A 236 1 7 HELIX 8 8 LYS A 250 HIS A 263 1 14 HELIX 9 9 SER A 278 MET A 284 5 7 HELIX 10 10 ASP A 286 TRP A 304 1 19 HELIX 11 11 GLN A 330 GLY A 354 1 25 HELIX 12 12 GLY A 366 ASP A 371 1 6 HELIX 13 13 ALA A 374 GLN A 379 1 6 HELIX 14 14 ASN A 380 MET A 382 5 3 HELIX 15 15 THR A 419 GLY A 431 1 13 HELIX 16 16 LYS A 433 GLY A 435 5 3 HELIX 17 17 ILE A 458 GLY A 462 5 5 HELIX 18 18 TYR A 479 PHE A 486 1 8 HELIX 19 19 ASP A 517 GLN A 532 1 16 HELIX 20 20 GLU A 540 ASP A 544 5 5 HELIX 21 21 GLY A 546 LEU A 556 1 11
SHEET 1 A 3 THR A 30 ILE A 31 0 SHEET 2 A 3 ALA A 60 ASN A 67 -1 O ASN A 67 N THR A 30 SHEET 3 A 3 SER A 95 VAL A 102 -1 O PHE A 100 N VAL A 62 SHEET 1 B 5 LYS A 37 ALA A 39 0 SHEET 2 B 5 THR A 126 ALA A 131 1 O ALA A 131 N PHE A 38 SHEET 3 B 5 GLY A 106 ASN A 116 -1 N GLY A 106 O VAL A 130 SHEET 4 B 5 THR A 76 LEU A 81 -1 N LEU A 80 O GLN A 111 SHEET 5 B 5 LYS A 84 PRO A 90 -1 O GLY A 89 N ALA A 77 SHEET 1 C 4 LYS A 37 ALA A 39 0 SHEET 2 C 4 THR A 126 ALA A 131 1 O ALA A 131 N PHE A 38 SHEET 3 C 4 GLY A 106 ASN A 116 -1 N GLY A 106 O VAL A 130 SHEET 4 C 4 GLY A 119 ALA A 122 -1 O THR A 121 N LEU A 114 SHEET 1 D 2 VAL A 41 VAL A 43 0 SHEET 2 D 2 VAL A 54 VAL A 56 -1 O LYS A 55 N GLU A 42 SHEET 1 E 2 TYR A 152 LYS A 153 0 SHEET 2 E 2 SER A 559 ALA A 560 -1 O SER A 559 N LYS A 153 SHEET 1 F 9 VAL A 159 VAL A 165 0 SHEET 2 F 9 HIS A 186 ILE A 192 1 O LEU A 188 N PHE A 164 SHEET 3 F 9 LYS A 267 GLY A 273 1 O LYS A 267 N LEU A 187 SHEET 4 F 9 GLY A 309 ASP A 313 1 O ASP A 311 N ILE A 272 SHEET 5 F 9 GLU A 358 SER A 364 1 O THR A 360 N ILE A 312 SHEET 6 F 9 HIS A 384 MET A 388 1 O PHE A 386 N SER A 361 SHEET 7 F 9 ILE A 437 ALA A 442 1 O VAL A 438 N ILE A 385 SHEET 8 F 9 GLY A 535 TRP A 539 1 O PHE A 537 N THR A 441 SHEET 9 F 9 VAL A 159 VAL A 165 1 N VAL A 159 O LEU A 536 SHEET 1 G 5 GLN A 492 ASP A 496 0 SHEET 2 G 5 ALA A 501 LYS A 506 -1 O PHE A 505 N GLN A 492 SHEET 3 G 5 ASP A 511 THR A 514 -1 O ASP A 511 N LYS A 506 SHEET 4 G 5 TYR A 444 THR A 449 -1 N ARG A 446 O THR A 514 SHEET 5 G 5 GLY A 466 PRO A 467 -1 O GLY A 466 N THR A 449 SHEET 1 H 5 GLN A 492 ASP A 496 0 SHEET 2 H 5 ALA A 501 LYS A 506 -1 O PHE A 505 N GLN A 492 SHEET 3 H 5 ASP A 511 THR A 514 -1 O ASP A 511 N LYS A 506 SHEET 4 H 5 TYR A 444 THR A 449 -1 N ARG A 446 O THR A 514 SHEET 5 H 5 ILE A 476 ASP A 478 -1 O VAL A 477 N GLY A 445
SSBOND 1 CYS A 115 CYS A 120 1555 1555 2.06 SSBOND 2 CYS A 195 CYS A 218 1555 1555 2.06
LINK C1 NAG A 8 O4 NAG A 9 1555 1555 1.40 LINK C1 NAG A 6 O4 NAG A 7 1555 1555 1.78 LINK C1 NAG A 7 O4 NAG A 8 1555 1555 1.83
CISPEP 1 GLY A 190 PHE A 191 0 -1.68 CISPEP 2 GLU A 315 PHE A 316 0 -1.34 CISPEP 3 TRP A 539 GLU A 540 0 -1.64
SITE 1 AC1 14 NAG A 7 TYR A 163 PHE A 191 GLY A 274 SITE 2 AC1 14 TRP A 275 ASP A 313 GLU A 315 MET A 388 SITE 3 AC1 14 TYR A 390 TYR A 444 ARG A 446 TRP A 539 SITE 4 AC1 14 HOH A 924 HOH A1005 SITE 1 AC2 10 NAG A 6 NAG A 8 TRP A 275 GLU A 315 SITE 2 AC2 10 PHE A 316 MET A 388 ARG A 446 HOH A 647 SITE 3 AC2 10 HOH A 935 HOH A1234 SITE 1 AC3 10 NAG A 7 NAG A 9 TRP A 275 LYS A 369 SITE 2 AC3 10 ALA A 391 PHE A 396 TYR A 418 HOH A 953 SITE 3 AC3 10 HOH A1142 HOH A1269 SITE 1 AC4 7 NAG A 8 PHE A 392 PHE A 396 ASP A 397 SITE 2 AC4 7 TYR A 418 HOH A 909 HOH A1058
CRYST1 199.853 131.907 59.539 90.00 90.00 90.00 C 2 2 21 8
ORIGX1 1.000000 0.000000 0.000000 0.00000
ORIGX2 0.000000 1.000000 0.000000 0.00000
ORIGX3 0.000000 0.000000 1.000000 0.00000
SCALE1 0.005004 0.000000 0.000000 0.00000
SCALE2 0.000000 0.007581 0.000000 0.00000
SCALE3 0.000000 0.000000 0.016796 0.00000